Service manual

EBS - MARK II
2-9Revised:05/2013
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TROUBLESHOOTING
5. ELETRIC FAULTS
FAULT DESCRIPTION FAULT LOCATION FAULT ELIMINATION
After switching the
machine on the display,
the fan in the cabinet and
the working lights do not
work
No supply voltage Check the connection of the mains fork,
eventually the voltage in socket
Faulty power supply
switch QS1
Replace switch 06.7100.0.047
Only working light does
not work
Blown fuse F9
(T315mA)
Replace the fuse 12.0008.4.062
Disconnected cable Check the circuit of light
Only the cross marker
does not work
Blown fuse F1 (T1A) Replace the fuse 12.0008.4.063
Disconnected cable Check the circuit
Machine display, fan in the
cabinet, active sensors do
not work
Blown fuse F2 (T5A) Replace the fuse 12.0008.4.109
Active sensors on the
machine, both PLCs in
control cabinet do not
work
Faulty power supply
GS1
Replace the supply
12.0010.4.168
Check +24V for X1:1 to X1:8
Display on the machine,
turned on air vents do not
work
Faulty power supply
GS2
Replace the supply 12.0010.4.168
Check +24V for X1:9 to X1:11
WARNING! Supplies GS1 and GS2 are identical. In case of short
circuit in the feed line +24V they automatically switch off.
Therefore we recommend disconnecting the conductor no.
50 /GS1/ or no. 52 /GS2/ before their replacement and test-
ing their proper operation so you can avoid a short circuit or
overloading in the machine cabling of the connected device.